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Valentin [98]
4 years ago
7

X + 2y = 8 X + 3y = 12

Mathematics
1 answer:
Readme [11.4K]4 years ago
7 0

Answer:

(0,4)

Step-by-step explanation:

Subtract the first equation from the second, obtaining y = 4.  Then substitute 4 for y in the first equation, obtaining x + 2(4) = 8; it follows that x = 0.

The solution is (0,4).

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gogolik [260]
One liter is 1,000 ml.  plus 299 ml.  is 1,299 ml.  plus the additonal 398 ml. is 1,697 ml.  which is 722 ml.  less than the total volume. (722 ml. of water can still be added.)
3 0
4 years ago
the graph shows the relationship between the radius and volume for many cones whose height is 6 inches
masya89 [10]

Answer:

E. If the radius of the cone is 2 inches, the volume of the cone is 25 cubic inches. B. The relationship between radius and volume is not linear

Step-by-step explanation:

5 0
2 years ago
Reciprocate 2 5/9 <br>plz and thx​
ZanzabumX [31]

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Step-by-step explanation:

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6 0
3 years ago
Traveling from San Antonio to Dallas, you fist pass through Austin and then Waco before reading Dallas, a total distance of 280
pshichka [43]
The answer is 70 miles.

If we express distances as following:
T - total distance
a - distance from <span>San Antonio to Austin
b - </span>distance from <span>Austin to Waco
c - </span>distance from <span>Waco to Dallas
Then:
T = 280 mi
b = a - 30 mi        </span>⇒ a = b + 30<span>
b = c + 20 mi       </span>⇒ c = b - 20<span>

T = a + b + c
</span>⇒ a + b + c = 280
⇒ b + 30 + b + b - 20 = 280
⇒ 3b +10 = 280
⇒ 3b = 280 - 10
⇒ 3b = 270
⇒ b = 90 mi.

Distance from <span>Waco to Dallas is c.
</span><span>c = b - 20
</span>⇒ c = 90 - 20
⇒ c = 70 mi

Therefore, distance from <span>Waco to Dallas is 70 miles.</span>
8 0
3 years ago
How to use inverse cosin
Alecsey [184]

Answer:

sec

Step-by-step explanation:

1/cosin = sec or cosin^-1

4 0
2 years ago
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